|Hubble Surveys the "Homes" of Quasars - *Credit:* John Bahcall (Institute for Advanced Study, Princeton [ http://www.ias.edu/ ]), Mike Disney (University of Wales [ http://www.cf.ac.uk/ ]), and NASA [ http://www.nasa.gov/ ]|
*Description*: Quasars reside in a variety of galaxies, from normal to highly disturbed. When seen through ground-based telescopes, these compact, enigmatic light sources resemble stars, yet they are billions of light-years away and several hundred billion times brighter than normal stars. The following Hubble Space Telescope images show examples of different home sites of all quasars. But all the sites must provide the fuel to power these unique light beacons...
Keywords: PG 0052+251; PHL 909; IRAS04505-2958; PG 1012+008; 0316-346; IRAS13218+0552; What -- Hubble Space Telescope (HST); What -- Earth